*SUPPORT*
IN: wif OUT: BLUE
IN: wif blicket fep tufa OUT: BLUE YELLOW YELLOW YELLOW YELLOW
IN: wif fep zup tufa OUT: BLUE YELLOW RED BLUE YELLOW RED
IN: lug lug OUT: GREEN GREEN
IN: zup blicket fep OUT: RED YELLOW YELLOW
IN: lug gazzer tufa OUT: GREEN GREEN GREEN GREEN
IN: lug blicket lug OUT: GREEN GREEN GREEN
IN: fep fep OUT: YELLOW YELLOW
IN: zup blicket zup gazzer OUT: RED RED RED RED RED
IN: fep lug blicket zup OUT: YELLOW GREEN RED RED
IN: zup OUT: RED
IN: fep blicket zup zup OUT: YELLOW RED RED RED RED
IN: lug tufa OUT: GREEN GREEN
IN: wif gazzer OUT: BLUE BLUE

*QUERY*
IN: fep OUT: YELLOW
IN: zup gazzer tufa OUT: RED RED RED RED
IN: wif lug wif OUT: BLUE GREEN BLUE
IN: wif tufa tufa OUT: BLUE BLUE BLUE BLUE
IN: wif blicket zup OUT: BLUE RED RED
IN: lug gazzer OUT: GREEN GREEN
IN: lug OUT: GREEN
IN: fep zup fep lug OUT: YELLOW RED YELLOW GREEN
IN: fep zup tufa tufa OUT: YELLOW RED YELLOW RED YELLOW RED YELLOW RED
IN: zup tufa OUT: RED RED

*GRAMMAR*
zup -> RED 
 lug -> GREEN 
 wif -> BLUE 
 fep -> YELLOW 
 u1 blicket x1 -> [u1] [x1] [x1] 
 x1 tufa -> [x1] [x1] 
 x1 gazzer -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 